He that would make his own liberty secure, must guard even his enemy from oppression; for if he violates this duty, he establishes a precedent that will reach himself. -
Thomas Paine is one of America's early Tungsten Men, his writing and pamphleteering helped inspired a nation to become one. The quote above comes from 'Dissertation on First Principles of Government' published in 1795.
As a follow up to this quote, I would like quote George Bernard Shaw - This is so true today.
'Liberty Means responsibility, that is why most men dread it."